Which component has an oil passage delivering oil from the crankshaft to the piston assemblies?

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Multiple Choice

Which component has an oil passage delivering oil from the crankshaft to the piston assemblies?

Lubrication in an engine follows paths from the crankshaft area to where moving parts like the piston need oil. The crankshaft feeds oil through its own passages to the rod bearings, and from there an internal oil passage in the connecting rod directs oil to the wrist pin area and around the piston linkage. That keeps the piston assemblies properly lubricated as they move. The crankcase is mainly a oil reservoir, not a direct passage to the piston. The piston itself doesn’t provide the route from the crankshaft to lubrication for the piston assemblies, and the camshaft has oil passages focused on its own bearings, not the pistons. So the component that carries the oil passage delivering oil from the crankshaft to the piston assemblies is the connecting rod.

Lubrication in an engine follows paths from the crankshaft area to where moving parts like the piston need oil. The crankshaft feeds oil through its own passages to the rod bearings, and from there an internal oil passage in the connecting rod directs oil to the wrist pin area and around the piston linkage. That keeps the piston assemblies properly lubricated as they move.

The crankcase is mainly a oil reservoir, not a direct passage to the piston. The piston itself doesn’t provide the route from the crankshaft to lubrication for the piston assemblies, and the camshaft has oil passages focused on its own bearings, not the pistons. So the component that carries the oil passage delivering oil from the crankshaft to the piston assemblies is the connecting rod.

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